Slightly broken script to automatically import ZFS pools from an external HDD on OS X

zfsautoimport.plist

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC -//Apple Computer//DTD PLIST 1.0//EN http://www.apple.com/DTDs/PropertyList-1.0.dtd >
<plist version="1.0">
<dict>
    <key>Label</key>
    <string>zfsautoimport</string>
    <key>ProgramArguments</key>
    <array>
        <string>/usr/local/bin/zpool</string>
        <string>import</string>
        <string>-a</string>
    </array>
    <key>KeepAlive</key>
    <false/>
    <key>RunAtLoad</key>
    <false/>
    <key>LaunchEvents</key>
    <dict>
            <key>com.apple.iokit.matching</key>
            <dict>
                    <key>com.apple.device-attach</key>
                    <dict>
                            <key>idProduct</key>
                            <integer>8986</integer>
                            <key>idVendor</key>
                            <integer>3010</integer>
                            <key>IOProviderClass</key>
                            <string>IOUSBDevice</string>
                            <key>IOMatchLaunchStream</key>
                            <true/>
                    </dict>
            </dict>
    </dict>
	<key>StandardErrorPath</key>
	<string>/private/var/log/zfsautoimport.err</string>
	<key>StandardOutPath</key>
    <string>/private/var/log/zfsautoimport.log</string>
</dict>
</plist>

Current bug: the OS fires another connect event when exporting the storage pool, so it gets stuck in an import loop!

Can probably fix this by monitoring a different event, saw something somewhere about disk arbitration - that would probably work better.